The Trump administration has quietly eliminated funding for NASA’s research program that tracks greenhouse gases around the world.

According to Science, the Carbon Monitoring System (CMS) tracks the world’s flow of carbon dioxide from space. Such a system is critical to monitoring any improvements — or failures — in attempts to cut the pollution linked to climate change.

NASA spokesman Steve Cole told the magazine that the program was canceled due to ”budget constraints and higher priorities within the science budget.” Usually, Congress battles such cuts, but this time, there was simply no mention of the program’s $10 million annual budget in the White House budget.

Although existing grants will finish, Cole said, no new projects will be undertaken. NASA’s budget report for fiscal year 2019 assumes the “termination” of CMS.